加载PHP变量值后触发函数

The intention is edit an invioce based on the invoice_id value received from the selection of a particular invoice from the invoice list table. Since this is an edit form, the invoice related details should be pre-loaded from the database.

目的是根据从发票清单表中选择特定发票收到的invoice_id值来编辑invioce。由于这是一个编辑表单,因此应从数据库预先加载与发票相关的详细信息。

The code looks as follows:

代码如下:

$invoice_id= base64_decode($_REQUEST['invoice_id']);
require_once '../model/invoice.php';
$obj=new Invoice();
$val=mysql_fetch_assoc($obj->getInvoiceDetailsForEdit($invoice_id));

The HTML of the hidden input text field is:-

隐藏输入文本字段的HTML是: -

<input type="hidden" name="inv_no" id="inv_no" value="<?php echo $invoice_id ?>"/>

The Script that is to be triggered inorder to get the preselected category is:-

要获得预选类别而触发的脚本是: -

<script>
        function getSelectedCategory(inv_no){
            if(inv_no!==""){
               var request = $.ajax({
                   url: "../controller/invoice.php",
                   type: "POST",
                   data: {inv_no:inv_no,action:'get_selected_category'},  
                   dataType: "json"
               });
               request.done(function(json_return){ 
                   $('#category').val(json_return['category_code']);
               });  
               request.fail(function(jqXHR, textStatus) {
                   alert( "Request failed: " + textStatus );
                   return false;
               });
           }
        }
</script>

The Controller code:-

控制器代码: -

function getSelectedCategory(){
    $inv=$_POST['inv_no'];
    require_once '../model/invoice.php';
    $obj=new Invoice();
    $result=mysql_fetch_assoc($obj->getAllInvoiceDetailsForViewing($inv));
    echo json_encode($result);
    exit;
}

Everything is working perfectly except the fact that I don't know what to do to run the script after the php variable $invoice_id is being loaded since the text field cannot accept events as it is a hidden field..

一切都工作得很好,除了我不知道如何在加载php变量$ invoice_id之后运行脚本,因为文本字段不能接受事件,因为它是隐藏字段。

I had changed the code as similar to the below one and found it is working:

我已将代码更改为类似于下面的代码,并发现它正在工作:

<input type="text" name="inv_no" id="inv_no" value="<?php echo $invoice_id ?> onblur="getSelectedCategory(this.value)"/>

Any suggestions would be very helpful!!

任何建议都会非常有用!!

1 个解决方案

#1

have you tried this:

你试过这个:

function getSelectedCategory(inv_no){

window.onload = function(){
if(inv_no!==""){
               var request = $.ajax({
                   url: "../controller/invoice.php",
                   type: "POST",
                   data: {inv_no:inv_no,action:'get_selected_category'},  
                   dataType: "json"
               });
               request.done(function(json_return){ 
                   $('#category').val(json_return['category_code']);
               });  
               request.fail(function(jqXHR, textStatus) {
                   alert( "Request failed: " + textStatus );
                   return false;
               });
           }
        }

}


}

I have added window.onload event to your JS function to make sure every element is loaded.

我已经将window.onload事件添加到您的JS函数中以确保每个元素都已加载。

#1